intermediate. The triphenylphosphine complex [η5-C5H4(CHPh2)}RhCl2(PPh3)] 7f was prepared analogously from 5c and two equiv. of HCl. The reactions of 5a and 5d (R = Ph, L = SbPri3) with either HBF4, [Me3O]BF4 or methyl triflate give via attack of the electrophile on the carbene carbon atom and subsequent σ/π rearrangement cationic η3-benzylrhodium(III) complexes 9 and 10a–c in good to excellent yields
所述carbenerhodium的反应(我)配合物[(η 5 -C 5 H ^ 5)的Rh(CR 2)(L)](R = 芳基)(以HX(X = Cl,CF 3 CO 2)为主导),具体取决于
配体L,要两种不同类型的产品。而化合物1,2与R = P h和L = CO或PME 3与HX进行反应,得到
铑(III)烷基[(η 5 -C 5 H ^ 5)RHX(CHPh配合2)(L)] 3,4A,4B中,类似物图5a和5b中,其中R = PH,p -Tol和L = PPR我3得到处理后与HX(X =
氯,
溴,I,CF 3 CO 2)的环-取代的产物[η 5 -C 5高4(CHR 2)} RhHX(PPr i 3)] 6a–e。在过量HX的存在,后者被转化成卤代或二(trifluoroacetato)衍
生物[η 5 -C 5 H ^ 4(CHR 2)} RHX 2(PPR我3)]器7a-e 。一种贴标试验使用[(η